Filling gas shuts off with 2-3 gal additional

[wickncsu]

With my 2025 TRD pro, when I fill up the gas, it shuts off. And then I can dribble in an additional 2-3 gallons. When I fill, I set the lock on the slowest locked setting. That extra 40-60 miles makes a difference. Anyone else, any remedy?

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[NotApplicable]

Generally advise against topping off. 3 gallons sounds… unusual though. Are you sure it behaves this way at all pumps?

 

[DangItsDen]

The tank is 19 gallons. How much are you saying you are able to fit? Def not supposed to keep going beyond the auto stop. You will damage your EVAP system.

 

[127.0.0.1]

if you keep doing that you could flood the evap canister lines
and the canister itself and go beyond it's capabilities to flush itself out.

that will be a somewhat expensive malfunction indicator lamp
easily avoided by stopping at the first click

---it's testable---

bring a 5 gallon gas can, filled with gas
go on drive about and way past empty so it starts to stall,
you are critically low on gas.

put in 5 gallons and be somewhat close to a gas
pump and fill it up to first click. how much gas went in from bone-dry ?

 

[josiahg52]

I think the OP is talking two to three whole gallons because they mention 40-60 extra miles per tank.

 

[Nodak]

well if you ruin your evap canister thats about a $600 part. so is it worth the extra $10 of gas you are able to get in worth that cost? and thats the cheap part of the evap system if i remember correctly.

someone with better knowledge can probably correct me.

its also know as the charcoal canister and over filling will pour gas into it and ruin the charcoal activator if i remember correctly.

 

[L-2]

On a longer trip, ~265 miles between Silican Valley and Reno NV, I can put in ~1 gallon more after the initial shut off.
After fill up, my estimated range will initially say ~302 miles, but once on the freeway, the estimated max. range might be ~370 miles eastbound going uphill (sea level to a 7200 foot climb on I-80, then down to ~4000 feet for Reno).

I agree with Post 1, a 40-60 mile range increase is significant as I'd not want to run out somewhere 50 miles away unfamiliar with what gas stations are around or open, although I tend to like Costco gas stations for the relatively good price/gallon.

Occasionally, there's a traffic stoppage on the interstate due to fire, snow, or accident, which can result in being on the road an extra few hours, too.

 

[quadna71]

While I don't condone topping off as I too have learned it will saturate the charcoal canister, I do agree that it clicks off sooner that I would expect. That or the fuel gauge shows empty long before the tank truly is empty. I have filled up when the dash says I have 25 miles to empty and I was only able to get 15.7 gallons in. That supports what you were saying about able to add an additional 3 gallons. Fortunately I haven't taken any long road trips that really needed the distance per tank...but it sure is annoying have to top off so often.

 

[Nodak]

well on my last 4k trip, i was getting around 300 miles per fill up, going down to 1/4 tank.

but i think going 300-325 miles is about right, thats between 4 to 5 hrs of non stop driving. which for me is about as long as i want to drive without a break.

but thats just me. personally i no longer push myself or go for long stints behind the wheel anymore. what i use to do in 2 days now i do in 3 days and take my time and enjoy the drive. and i tend to go at most 3 mph over the speed limit.

if the limit posted is 70, i set the cruise to +5 speedometer reading (which actually comes out to 73 actual per the gps since toyota sand bags the actual speed vs display)

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